diff --git a/README.md b/README.md
index e1cf122..07c6713 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ http://www.digitalmars.com
 
 https://digitalmars.com/ctg/sc.html
 
-## Building the compiler:
+## Building the compiler (Win32 only):
 
 1. Download and install Digital Mars C++ compiler from https://www.digitalmars.com/download/freecompiler.html
 2. Download and install DMD 2.074.1 from http://downloads.dlang.org/releases/2017/
@@ -20,3 +20,5 @@ https://digitalmars.com/ctg/sc.html
    `make clean`
    `make scppn`
 You might need to edit the `makefile` to set the path to your DMD installation.
+
+Note that DMC targets Win32, and hasn't been ported to other platforms.
diff --git a/dm/src/dmc/posix.mak b/dm/src/dmc/posix.mak
deleted file mode 100644
index 459dbac..0000000
--- a/dm/src/dmc/posix.mak
+++ /dev/null
@@ -1,334 +0,0 @@
-#_ makefile
-# Copyright (C) 1984-1994 by Symantec
-# Copyright (c) 2000-2012 by Digital Mars
-# Written by Walter Bright
-# All Rights Reserved
-#       for C/C++ compiler parser and preprocessor (SCC, SCPP, SPP and HTOD)
-
-# Suffixes:
-#       n       WIN32 EXE
-#       nd      WIN32 DLL
-
-# Paths:
-
-CBX=.
-NTDLLSHELL=ntdllshell
-TK=tk
-INCLUDE=-I$(TK) -I$(NTDLLSHELL)/include
-# Where scp command copies to
-SCPDIR=..\backup
-SCPDIR=walter@mercury:dm
-
-# Options:
-#       TARGET          one of SCC, SCPP, SPP, HTOD for C, C++, Preprocessor
-#       XFLG            other compiler switches
-#       OPT             optimization switches
-#       DEBUG           debug switches
-#       PREC            precompiled header switches
-#       LFLAGS          flags to DOS linker
-#       LINKN           linker to use for target
-
-TARGET=SPP
-XFLG=
-OPT=
-DEBUG=-g
-#LFLAGS=/map/co
-LFLAGS=/map/e/f/packcode/noe;
-BASE=
-
-##### Tools
-
-# C++ compiler
-CC=g++
-# Make program
-MAKE=make
-# Librarian
-LIB=lib
-# Delete file(s)
-DEL=rm
-# Make directory
-MD=mkdir
-# Remove directory
-RD=rmdir
-# File copy
-CP=cp
-# De-tabify
-DETAB=detab
-# Convert line endings to Unix
-TOLF=tolf
-# Zip
-ZIP=zip32
-# Copy to another directory
-SCP=$(CP)
-SCP=\putty\pscp -i c:\.ssh\colossus.ppk
-# PVS-Studio command line executable
-PVS="c:\Program Files (x86)\PVS-Studio\x64\PVS-Studio"
-
-
-CFLAGS=$(INCLUDE) $(XFLG) $(OPT) $(DEBUG) -D$(TARGET)
-
-# Makerules:
-.c.o:
-	$(CC) -c $(CFLAGS) $*.c
-
-################ DUMMY #########################
-
-noparameter: spp
-
-
-################ RELEASES #########################
-
-release:
-	make clean
-	make scppn
-	make clean
-	make sppn
-	make clean
-	make scppnd
-	make clean
-	make sppnd
-	make clean
-	make htodn
-	make clean
-
-################ NT COMMAND LINE RELEASE #########################
-
-sppn:
-	make TARGET=SPP  OPT=-O2 DEBUG= LFLAGS= spp
-
-sccn:
-#       make TARGET=SCC  OPT=-o "DEBUG=-gt -DSTATIC= -Nc" LFLAGS=/noi/noe/map sccn.exe
-	make TARGET=SCC  OPT=-o "DEBUG= -DSTATIC= -Nc" LFLAGS=/noi/noe/map sccn.exe
-
-scppn:
-#       make TARGET=SCPP OPT=-o "DEBUG=-gt -g -DSTATIC= -Nc" LFLAGS=/noi/noe/map scppn.exe
-#       make TARGET=SCPP OPT=-o "DEBUG=-g -DSTATIC= -Nc" LFLAGS=/noi/noe/map/co scppn.exe
-	make TARGET=SCPP OPT=-o "DEBUG= -DSTATIC= -Nc" LFLAGS=/noi/noe/map scppn.exe
-
-htodn:
-	make TARGET=HTOD XFLG=-DSCPP OPT=-o "DEBUG= -DSTATIC= -Nc" LFLAGS=/noi/noe/map htodn.exe
-
-################ NT COMMAND LINE DEBUG #########################
-
-debcppn:
-	make TARGET=SCPP OPT= "DEBUG=-D -g -DMEM_DEBUG" LFLAGS=/noi/noe/co/m scppn.exe
-
-debppn:
-	make TARGET=SPP  OPT= "DEBUG=-D -g -DMEM_DEBUG" LFLAGS= spp
-
-debhtodn:
-	make TARGET=HTOD XFLG=-DSCPP  OPT= "DEBUG=-D -g -DMEM_DEBUG" LFLAGS=/noi/noe/co/m htodn.exe
-
-#########################################
-
-OBJ1=blklst.o blockopt.o cpp.o debug.o ee.o el.o enum.o err.o \
-	evalu8.o eh.o exp.o exp2.o file.o filename.o func.o adl.o \
-	getcmd.o ini.o init.o inline.o loadline.o cppman.o msc.o \
-	nspace.o nwc.o os.o out.o ph.o ppexp.o pragma.o pseudo.o \
-	struct.o symbol.o template.o tk.o token.o type.o dt.o \
-	var.o nteh.o rtlsym.o rtti.o scope.o tdbx.o util.o html.o \
-	unialpha.o entity.o aa.o ti_achar.o ti_pvoid.o backconfig.o
-
-OBJ2= cgcod.o cod1.o cod2.o cod3.o cod4.o cod5.o cg87.o cgxmm.o code.o \
-	cg.o cgelem.o cgcs.o cgcv.o tytostr.o cgen.o cgreg.o \
-	cgobj.o cgsched.o objrecor.o iasm.o ptrntab.o newman.o \
-	go.o gloop.o gother.o gflow.o gdag.o glocal.o pdata.o cv8.o \
-	errmsgs2.o outbuf.o bcomplex.o htod.o speller.o utf.o divcoeff.o
-
-OBJS= $(OBJ1) $(OBJ2)
-
-#########################################
-
-spp: $(OBJS)
-	$(CC) -o spp $(OBJS)
-
-#########################################
-
-test.o : test.c
-
-##################### INCLUDE MACROS #####################
-
-CCH= cc.h cdef.h ty.h outbuf.h $(TK)/mem.h $(TK)/list.h $(TK)/vec.h
-TOTALH=$(CCH) token.h parser.h el.h scope.h global.h obj.h type.h oper.h cpp.h \
-	$(TK)/filespec.h dt.h msgs2.h bcomplex.h total.h
-
-##################### GENERATED SOURCE #####################
-
-elxxx.c cdxxx.c optab.c debtab.c fltables.c tytab.c : \
-	cdef.h cc.h oper.h ty.h optabgen.c
-	$(CC) -I$(TK) optabgen.c -o optabgen
-	./optabgen
-
-msgs2.h msgs2.c : msgsx.c
-	$(CC) msgsx.c -o msgsx
-	./msgsx
-
-##################### ZIP ################################
-
-RELEASE= scppn sppn
-
-SRC=    tassert.h html.h html.c \
-	ini.c cgcv.h cv4.h tdb.h loadline.c ppexp.c errmsgs2.c tdbx.c \
-	allocast.h go.h iasm.h cg.c scdll.h objrecor.c rtlsym.c util.c \
-	total.h exh.h cpp.h iasm.c type.c enum.c nspace.c err.c \
-	filename.c blklst.c tytostr.c ee.c cppman.c msgs.h symbol.c \
-	msgsx.c eh.c template.c rtti.c scope.h scope.c token.h outbuf.h \
-	outbuf.c trace.c dt.h file.c parser.h cod5.c type.h newman.c out.c \
-	ty.h glocal.c pseudo.c init.c nteh.c \
-	code.c el.c el.h ptrntab.c cpp.c func.c debug.c struct.c evalu8.c os.c \
-	exp2.c blockopt.c exp.c gdag.c gflow.c gother.c global.h oper.h \
-	optabgen.c cgcs.c cgcv.c go.c var.c cod2.c cc.h gloop.c msc.c cod3.c \
-	code.h cgsched.c cgen.c ph.c cgreg.c inline.c cgcod.c token.c \
-	pragma.c cod1.c cg87.c cgxmm.c cod4.c cgobj.c nwc.c getcmd.c tk.c cdef.h \
-	cgelem.c rtlsym.h dt.c strtold.c \
-	bcomplex.h bcomplex.c adl.c castab.c unialpha.c entity.c \
-	aa.h aa.c tinfo.h ti_achar.c htod.c md5.h speller.h speller.c utf.h utf.c \
-	ti_pvoid.c xmm.h obj.h code_stub.h code_x86.h platform_stub.c pdata.c cv8.c \
-	backconfig.c ph2.c util2.c divcoeff.c cdeflnx.h
-
-TKSRC= $(TK)\mem.h $(TK)\list.h $(TK)\vec.h $(TK)\filespec.h \
-	$(TK)\mem.c $(TK)\list.c $(TK)\vec.c $(TK)\filespec.c
-
-SHELLSRC= $(NTDLLSHELL)\include\dllrun.h $(NTDLLSHELL)\include\network.h \
-	$(NTDLLSHELL)\include\nsidde.h $(NTDLLSHELL)\include\netspawn.h
-
-LIBSRC= $(NTDLLSHELL)\lib\spwnlnd.lib $(NTDLLSHELL)\lib\netsploc.o
-
-BUILDSRC= sppn.tra sccn.tra htodn.tra scppn.tra makefile
-
-LICENSE= gpl.txt
-
-VERSION=857
-
-zip:
-	$(DEL)del dm$(VERSION).zip
-	zip -u dm$(VERSION) $(RELEASE)
-
-zipsrc:
-	$(DEL) dm$(VERSION)src.zip
-	zip -u dm$(VERSION)src $(SRC) tdb.lib $(LICENSE) backend.txt
-	zip -u dm$(VERSION)src $(TKSRC)
-	zip -u dm$(VERSION)src $(SHELLSRC)
-	zip -u dm$(VERSION)src $(LIBSRC)
-	zip -u dm$(VERSION)src $(BUILDSRC)
-
-detab:
-	detab $(SRC) $(TKSRC) $(SHELLSRC)
-
-tolf:
-	tolf $(SRC) $(TKSRC) $(SHELLSRC)
-
-git: detab tolf $(BUILDSRC)
-	$(SCP) $(SRC) $(BUILDSRC) tdb.lib $(LICENSE) $(SCPDIR)/Compiler/dm/src/dmc/
-	$(SCP) $(TKSRC) $(SCPDIR)/Compiler/dm/src/dmc/tk
-	$(SCP) $(SHELLSRC) $(SCPDIR)/Compiler/dm/src/dmc/ntdllshell/include
-	$(SCP) $(LIBSRC) $(SCPDIR)/Compiler/dm/src/dmc/ntdllshell/lib
-
-##################### SPECIAL BUILDS #####################
-
-os.o : os.c
-	$(CC) -c $(CFLAGS) os.c
-
-strtold.o : strtold.c
-	$(CC) -c -O2 strtold.c
-
-divcoeff.o : divcoeff.c
-	$(CC) -c -O2 divcoeff.c
-
-################# Source file dependencies ###############
-
-DEP=$(TOTALH) msgs2.h msgs2.c elxxx.c cdxxx.c optab.c debtab.c fltables.c tytab.c
-
-aa.o : aa.h tinfo.h aa.c
-backconfig.o : $(DEP) $(backconfig.dep) backconfig.c
-bcomplex.o : bcomplex.h bcomplex.c
-blklst.o : $(DEP) $(blklst.dep) blklst.c
-blockopt.o : $(DEP) $(blockopt.dep) blockopt.c
-cg.o : $(DEP) $(cg.dep) cg.c
-cgcs.o : $(DEP) $(cgcs.dep) cgcs.c
-cgobj.o : $(DEP) $(cgobj.dep) cgobj.c
-cgreg.o : $(DEP) $(cgreg.dep) cgreg.c
-cod1.o : $(DEP) $(cod1.dep) cod1.c
-cod2.o : $(DEP) $(cod2.dep) cod2.c
-cod3.o : $(DEP) $(cod3.dep) cod3.c
-cod4.o : $(DEP) $(cod4.dep) cod4.c
-cod5.o : $(DEP) $(cod5.dep) cod5.c
-code.o : $(DEP) $(code.dep) code.c
-cv8.o : $(DEP) $(cv8.dep) cv8.c
-debug.o : $(DEP) $(debug.dep) debug.c
-dt.o : $(DEP) $(dt.dep) dt.c
-ee.o : $(DEP) $(ee.dep) ee.c
-eh.o : $(DEP) $(eh.dep) eh.c
-el.o : $(DEP) $(el.dep) el.c
-enum.o : $(DEP) $(enum.dep) enum.c
-errmsgs2.o : $(DEP) $(errmsgs2.dep) errmsgs2.c msgs2.c
-evalu8.o : $(DEP) $(evalu8.dep) evalu8.c
-filename.o : $(DEP) $(filename.dep) filename.c
-glocal.o : $(DEP) $(glocal.dep) glocal.c
-gloop.o : $(DEP) $(gloop.dep) gloop.c
-htod.o : $(DEP) $(htod.dep) htod.c
-html.o : $(DEP) $(html.dep) html.c
-init.o : $(DEP) $(init.dep) init.c
-inline.o : $(DEP) $(inline.dep) inline.c
-loadline.o : $(DEP) $(loadline.dep) loadline.c
-cppman.o : $(DEP) $(cppman.dep) cppman.c
-msc.o : $(DEP) $(msc.dep) msc.c
-nteh.o : $(DEP) $(nteh.dep) nteh.c
-objrecor.o : $(DEP) $(objrecor.dep) objrecor.c
-out.o : $(DEP) $(out.dep) out.c
-pdata.o : $(DEP) $(pdata.dep) pdata.c
-pragma.o : $(DEP) $(pragma.dep) pragma.c
-pseudo.o : $(DEP) $(pseudo.dep) pseudo.c
-ptrntab.o : $(DEP) $(ptrntab.dep) iasm.h ptrntab.c
-speller.o : speller.h speller.c
-template.o : $(DEP) $(template.dep) template.c
-ti_achar.o : tinfo.h ti_achar.c
-ti_pvoid.o : tinfo.h ti_pvoid.c
-tk.o : $(DEP) $(tk.dep) tk.c
-type.o : $(DEP) $(type.dep) type.c
-utf.o : utf.h utf.c
-util.o : $(DEP) $(util.dep) util.c
-cgcv.o : $(DEP) $(cgcv.dep) cgcv.c
-cgelem.o : $(DEP) $(cgelem.dep) cgelem.c
-gdag.o : $(DEP) $(gdag.dep) gdag.c
-getcmd.o : $(DEP) $(getcmd.dep) getcmd.c
-gother.o : $(DEP) $(gother.dep) gother.c
-exp2.o : $(DEP) $(exp2.dep) castab.c exp2.c
-err.o : $(DEP) $(err.dep) err.c
-func.o : $(DEP) $(func.dep) func.c
-adl.o : $(DEP) $(adl.dep) adl.c
-nspace.o : $(DEP) $(nspace.dep) nspace.c
-nwc.o : $(DEP) $(nwc.dep) nwc.c
-iasm.o : $(DEP) $(iasm.dep) iasm.h iasm.c
-go.o : $(DEP) $(go.dep) go.c
-struct.o : $(DEP) $(struct.dep) struct.c
-gflow.o : $(DEP) $(gflow.dep) gflow.c
-cgcod.o : $(DEP) $(cgcod.dep) cgcod.c
-cgen.o : $(DEP) $(cgen.dep) cgen.c
-ph.o : $(DEP) $(ph.dep) ph.c
-token.o : $(DEP) $(token.dep) token.c
-rtlsym.o : $(DEP) $(rtlsym.dep) rtlsym.c
-symbol.o : $(DEP) $(symbol.dep) symbol.c
-tytostr.o : $(DEP) $(tytostr.dep) tytostr.c
-cg87.o : $(DEP) $(cg87.dep) cg87.c
-cgxmm.o : $(DEP) xmm.h $(cgxmm.dep) cgxmm.c
-cpp.o : $(DEP) $(cpp.dep) cpp.c
-exp.o : $(DEP) $(exp.dep) exp.c
-file.o : $(DEP) $(file.dep) file.c
-outbuf.o : $(DEP) $(outbuf.dep) outbuf.c
-ppexp.o : $(DEP) $(ppexp.dep) ppexp.c
-newman.o : $(DEP) $(newman.dep) newman.c
-rtti.o : $(DEP) $(rtti.dep) rtti.c
-scope.o : $(DEP) $(scope.dep) scope.c
-tdbx.o : $(DEP) $(tdbx.dep) tdbx.c
-var.o : $(DEP) $(var.dep) var.c
-unialpha.o : unialpha.c
-
-################### Utilities ################
-
-clean:
-	$(DEL) $(OBJS)
-	$(DEL) msgsx optabgen
-	$(DEL) msgs2.h msgs2.c elxxx.c cdxxx.c optab.c debtab.c fltables.c tytab.c
-
-###################################